2002 N Main St - URM Report - Laserfiche WebLink

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8 t-502 JUN 29 APPLICATION OF THE ORDINANCE TO THE I.IUSEUI4 The building has a rating classification lll according to the Ordinance on the basis that exterior walls are braced by cross walls less than 40 feet apart in each story. We find that the building does not comply with the ordinance in the fol lowing respects: l./a I ls having unsupported height or length ratios (H/T) exceeding 10. and in which tension stresses would occur under normal-to-plane seismic loading are at the fol lowing locations. (Room numbers and names are as assigned on the archi tectural plans. ) north, east and west wa I ls.a. Room b. Room o c. All second stor brick wal ls except the north , the north wall of the balcony/ south and west walls, and the portion th e east wa ll that is common with entry room wal I of room vestibule, and cor r i dor. he north and south walls of the 2. lnadequately braced parts of the building are: a Unbr room ac parapets around perimeter of the entry The ch imney. A "flying buttressrr h,est of the chimney. The l4 feet high freestanding wall north of the exter ior s ta i rway. Roofs that tend to brace walls or parts of the building but which are inadequately anchored to them and do not have shear nor chord tension capacity to resist the appl ied forces if they were anchored are at the following locations: a.Over room (entry). This roof is constructed of Ce I otex ah d floor tile on wood stripping, Over the balcony (presently office space). This roof is constructed of wood boards on purl ins. Mortar in the building is hard and in good condition. tJe expect that the tests required by the Ordinance will allow the highest permitted shear capacity. 0n this basis the walls considered as shear walls appear to have b c d 3 b dE'Jsllfues o 2 o